Vrooman, W. The New Democracy: A handbook for Democratic speakers and workers.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रVrooman, Walter. The New Democracy: A Handbook for Democratic Speakers and Workers.
एमएलए (9वां संस्करण) प्रशस्ति पत्रVrooman, Walter. The New Democracy: A Handbook for Democratic Speakers and Workers.
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